Glossary
Fast Breeder Reactor (FBR)
A **Fast Breeder Reactor (FBR)** is an advanced type of nuclear reactor that utilizes fast neutrons to convert fertile isotopes, such as uranium-238, into fissile isotopes like plutonium-239. Unlike traditional thermal reactors, FBRs do not require a neutron moderator to slow down neutrons, allowing for a higher efficiency of fuel utilization. This characteristic enables FBRs to generate more fissile material than they consume, effectively "breeding" fuel and leading to a more sustainable...
Fast Neutron
A **Fast Neutron** is a type of neutron that is released during nuclear reactions, such as fission, with energies typically ranging from 0.1 to 10 MeV (Mega-electron Volts). Unlike thermal neutrons, which have much lower kinetic energies and are in thermal equilibrium with their surroundings, fast neutrons move at significantly higher velocities. This high energy level makes them crucial in various applications within nuclear physics and energy production.
Fast neutrons play a key role in...
Fixed Speed Wind Turbine
A **Fixed Speed Wind Turbine** is a type of wind turbine designed to operate at a constant speed regardless of wind velocity variations. Unlike variable speed wind turbines, fixed speed models connect directly to the electrical grid and typically use an induction generator. These turbines are engineered to maintain a specific rotational speed, ensuring consistent power output and stability, which simplifies the connection to the grid but can lead to suboptimal efficiency under varying wind...
Floating Solar Panels
**Floating Solar Panels**, also known as floating photovoltaic (FPV) systems, are solar power installations mounted on bodies of water, such as reservoirs, lakes, and even oceans. These innovative systems leverage the otherwise underutilized surfaces of water bodies to generate renewable energy. The panels are typically mounted on buoyant structures that allow them to float on the water’s surface while being anchored to the bottom to prevent drifting.
Floating solar panels offer numerous...
Food Waste
**Food waste** refers to the loss of edible food materials that are discarded, spoiled, or otherwise removed from the food supply chain for reasons other than consumption. It encompasses food that is fit for human consumption but is left uneaten, as well as inedible parts that could have been valorised for other purposes, such as animal feed, composting, or industrial use. Food waste occurs at all stages of the supply chain, from production and post-harvest handling to processing,...
Forest Risk Commodities
**Forest risk commodities** are crops or products linked to deforestation, which often involves clearing forests for agriculture or development. The production of these commodities often requires clearing forests to create space for agriculture or development. This deforestation significantly contributes to climate change by releasing stored carbon into the atmosphere and removing forests' ability to absorb carbon dioxide. It also causes biodiversity loss, threatening countless plant and...
Forest, Land and Agriculture (FLAG)
**Forest, Land and Agriculture (FLAG)** refers to a category of greenhouse gas emissions and removals associated with land-based activities, including agriculture, forestry, and other land use. Within frameworks such as the Science Based Targets initiative, FLAG covers emissions from sources like deforestation, soil management, livestock, and land-use change, as well as carbon removals through reforestation and improved land practices. FLAG is significant because these activities account for...
Fossil Fuels
**Fossil Fuels** are natural energy sources formed from the buried remains of ancient plants and animals that lived millions of years ago. Through a process involving heat and pressure over geological time, these organic materials transformed into coal, oil, and natural gas. These fuels are comprised mainly of hydrocarbons, which release energy when combusted, making them highly efficient for a variety of applications, including electricity generation, transportation, and industrial...
Freon
**Freon** is a trademarked name for a class of chemicals known as chlorofluorocarbons (CFCs), hydrochlorofluorocarbons (HCFCs), and related compounds. These colorless, non-flammable substances were widely utilized as refrigerants in air conditioning systems, refrigeration units, and heat pumps, as well as propellants in aerosol sprays. Developed by the chemists at DuPont in the early 20th century, Freon offered a safer alternative to previously utilized refrigerants like ammonia, which are...
Fugitive Emissions
**Fugitive Emissions** refer to the unintentional release of gases or vapors from industrial activities, which escape into the atmosphere through leaks, accidental discharges, or other irregular means. These emissions often come from equipment such as valves, pipes, and storage tanks, where seals or connections may degrade over time, causing the escape of harmful substances. Unlike emissions that come from a controlled point source like a chimney or exhaust pipe, fugitive emissions are less...
Fusion Energy Research
**Fusion Energy Research** is a scientific endeavor aimed at harnessing the power of nuclear fusion to create a nearly limitless, clean, and sustainable source of energy. Unlike fission, which splits atomic nuclei, fusion combines light atomic nuclei, such as hydrogen isotopes, to form heavier nuclei. This process releases massive amounts of energy, mirroring the reactions that power the sun and other stars. The promise of fusion energy lies in its potential to provide an abundant and...
Fusion Reactor Safety
**Fusion Reactor Safety** refers to the comprehensive set of protocols, technologies, and measures established to ensure the safe operation of nuclear fusion reactors, which aim to replicate the energy production process of the sun here on Earth. Unlike traditional nuclear fission reactors, fusion reactors have inherent safety advantages, such as using isotopes of hydrogen—deuterium and tritium—as fuel, which are less radioactive and generate minimal long-lived nuclear waste.
Safety in...